CriticalCVE-2026-18574

Authentication Bypass in Check Point Security Management Server (CVE-2026-18574)

Published 03.08.2026Last modified 03.08.2026Sources: CVE.org, BSI

Public exploit

What is affected, what to do

An authentication bypass vulnerability in Check Point Security Management Server and Multi-Domain Security Management Server (MDS) could allow an unauthenticated remote attacker with network access to Management services to execute arbitrary commands on the Security Management Server. Successful exploitation could result in full compromise of the Security Management system.

An exploit is publicly available. The available sources name no fixed version. Check the vendor guidance in the references below.

Affected: Check Point Security Management Server eq R82.10 with Jumbo Hotfix Accumulator Take 39 or below..R82.10 with Jumbo Hotfix Accumulator Take 39 or below
Check Point Security Management Server eq R82 with Jumbo Hotfix Accumulator Take 121 or below..R82 with Jumbo Hotfix Accumulator Take 121 or below
Check Point Security Management Server eq R81.20 with Jumbo Hotfix Accumulator Take 160 or below..R81.20 with Jumbo Hotfix Accumulator Take 160 or below
Check Point Security Management Server eq R81.10..R81.10
Check Point Security Management Server eq R81..R81
Check Point Security Management Server eq R80.40..R80.40
Check Point Security Management Server eq R80.30..R80.30
Check Point Security Management Server eq R80.20..R80.20
Check Point Security Management Server eq R80.10..R80.10
Check Point Security Management Server eq R80..R80
Check Point Multi-Domain Security Management Server eq R82.10 with Jumbo Hotfix Accumulator Take 39 or below..R82.10 with Jumbo Hotfix Accumulator Take 39 or below
Check Point Multi-Domain Security Management Server eq R82 with Jumbo Hotfix Accumulator Take 121 or below..R82 with Jumbo Hotfix Accumulator Take 121 or below
Check Point Multi-Domain Security Management Server eq R81.20 with Jumbo Hotfix Accumulator Take 160 or below..R81.20 with Jumbo Hotfix Accumulator Take 160 or below
Check Point Multi-Domain Security Management Server eq R81.10..R81.10
Check Point Multi-Domain Security Management Server eq R81..R81
Check Point Multi-Domain Security Management Server eq R80.40..R80.40
Check Point Multi-Domain Security Management Server eq R80.30..R80.30
Check Point Multi-Domain Security Management Server eq R80.20..R80.20
Check Point Multi-Domain Security Management Server eq R80.10..R80.10
Check Point Multi-Domain Security Management Server eq R80..R80

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Metrics

9.3

Priority

XIEM Effective CVSS: highest available CVSS rating from NVD and vendor data.

Source: NVD, CVSS v4

9.3

CVSS v4

Severity Critical on the scale from 0 to 10.

Source: CVE.org, BSI

0.9 %

EPSS score

Low — model estimates < 1% exploitation likelihood.

Source: FIRST EPSS, percentile 59.5

Show all metrics

Severity: Critical
Priority (0–325) The priority score is a consolidated metric that condenses several individual signals into a single, action-guiding ranking: technical severity (CVSS), exploitation likelihood (EPSS), known-exploited status (KEV) and the context of the affected asset. The aim is to answer the only truly important question in vulnerability management: what first? Read in glossary: 96.53 Methodology
Exploit maturity An exploit is code or a technique that specifically uses a concrete vulnerability to force unintended behaviour — such as executing code or escalating privileges. It is the tool that turns a theoretical flaw into a practical attack. Read in glossary: PoC (publicly reported)
XIEM Effective CVSS XIEM® is the tiered managed-security operating model from NEOSEC and a registered trademark of NEOSEC GmbH. It extends classic SIEM — the central collection, normalisation and correlation of security-relevant events — with endpoint forensics, network visibility and deception technology, and consolidates them into three building tiers: Sentry, Orchestrate and Command. Read in glossary: 9.3 Methodology
CVSS v4 CVSS is the globally established, open standard for assessing the technical severity of a vulnerability on a scale from 0 to 10. It describes how easily a flaw can be exploited and what damage it can cause — but not how likely its actual exploitation is. CVSS and the complementary EPSS deliberately answer different questions. Read in glossary: 9.3
EPSS score The EPSS score is the absolute model output for an individual vulnerability: the estimated probability of real-world exploitation within the next 30 days, expressed as a value between 0 and 1 (i.e. 0 % to 100 %). A score of 0.42 means „the model estimates a 42 % chance of real-world exploitation within 30 days“. Read in glossary: 0.9 %; Low — model estimates < 1% exploitation likelihood.
EPSS percentile The EPSS percentile is the relative position of a vulnerability within all EPSS-scored CVEs, expressed as a value between 0 and 1. A percentile of 0.90 means „this CVE has a higher EPSS score than 90 % of all other scored CVEs“. Unlike the EPSS score, it is not a probability — but a positioning within a ranking. Read in glossary: 59.5; High — this CVE ranks above the median of all CVEs scored today (rank ≥ 36%).
KEV status The KEV catalogue is a list maintained by the US authority CISA of vulnerabilities for which active exploitation in the wild has been confirmed. It answers not the question „how severe?“ but „is it already being attacked?“ — thereby sharply prioritising patching. Read in glossary: —
Published: 03.08.2026
CISA assessment (SSVC): Exploitation: none known · automatable · Technical impact: total; Source: CISA Vulnrichment, as of 4 August 2026
CWE CWE is a catalogue of typical weakness types in software and hardware — such as flawed input validation, unsafe memory handling or poor authentication. Where a CVE names a concrete vulnerability in a concrete product, a CWE describes the underlying class of defect. Read in glossary: CWE-288

Detection rules

No NEOSEC detection rule is available for this vulnerability yet.

Classification under NIS2 and CRA

Rule-based classification from exploitation status and severity. It does not replace a case-by-case assessment.

NIS2 NIS2 is EU Directive (EU) 2022/2555 to raise the level of cybersecurity across the Union. It substantially broadens obligations compared with the first NIS directive: more sectors, mandatory risk management, staged reporting duties and personal accountability of senior management. Read in glossary: High technical severity: assess and remediate the vulnerability in vulnerability handling under Art. 21(2)(e) NIS2 and document the decision.
CRA The CRA is EU Regulation (EU) 2024/2847 setting horizontal cybersecurity requirements for „products with digital elements“ — from industrial controllers and software to connected consumer devices. For the first time manufacturers must ensure security across the entire product lifecycle, handle vulnerabilities and provide security updates. Read in glossary: From 11.12.2027, Annex I Part II CRA requires manufacturers of affected products with digital elements to handle vulnerabilities without delay and provide security updates.
ISO/IEC 27001 ISO/IEC 27001 is the internationally leading standard for an information security management system (ISMS). It describes a risk-based, process-oriented framework to systematically plan, implement, review and improve information security. Read in glossary: Control A.8.8, management of technical vulnerabilities: assess relevance to your systems, plan remediation and keep evidence.

Description

Source: NVD (NIST), cvelistv5, BSI CSAF, BSI WID Portal

Affected products

The following versions are affected. Older releases of the same product line are also vulnerable unless stated otherwise.

Affected products
		Affected versions	Fixed in
checkpoint	Multi-Domain Security Management Server	`R81.20 with Jumbo Hotfix Accumulator Take 160 or below` `R81.10` `R80.40` `R82 with Jumbo Hotfix Accumulator Take 121 or below` `R81` `R82.10 with Jumbo Hotfix Accumulator Take 39 or below` `R80.20` `R80.10` `R80` `R80.30`	— — — — — — — — — —
checkpoint	Security Management Server	`R80.10` `R80.30` `R82.10 with Jumbo Hotfix Accumulator Take 39 or below` `R80` `R80.20` `R81.10` `R82 with Jumbo Hotfix Accumulator Take 121 or below` `R81` `R80.40` `R81.20 with Jumbo Hotfix Accumulator Take 160 or below`	— — — — — — — — — —
Check Point	Security Management	`Server <R82 Take 122` `Server <R82.10 Take 40` `Server <R81.20 Take 161`	— — —

Vendors and products

Weakness classes (CWE)

CWE-288Authentication Bypass Using an Alternate Path or Channel
Base
The product requires authentication, but the product has an alternate path or channel that does not require authentication.
Entry at MITRE CWE-288

Public exploit references

Publicly reported proof-of-concepts, exploit modules and detection templates for this vulnerability. NEOSEC links to the original sources only and does not provide any exploit code.

Public exploit references

PoC-in-GitHub (nomi-sec)	CVE-2026-18574 (opens in a new tab)github.com	PoC (publicly reported)reported, not verified	18.09.2026

References & sources

support.checkpoint.comCheck Point Security Advisory sk185222Vendor advisory

Changes to this CVE

Who changed this CVE and when: NVD (analysis, affected products, CVSS), the CVE publisher (CNA) and additional providers such as CISA (ADP).

03.08.2026Record modifiedCISA ADP

CISA assessment (SSVC): exploitation: none known, automatable: yes

Show the original change

Individual changes of this event as published by NVD
Type	Action	Before	After
SSVC assessment	added	—	{"id":"CVE-2026-18574","role":"CISA Coordinator","options":[{"exploitation":"none"},{"automatable":"yes"},{"technicalImpact":"total"}],"version":"2.0.3","timestamp":"2026-08-03T13:16:47.738211Z"}

Source identifier: 134c704f-9b21-4f2e-91b3-4a467353bcc0

03.08.2026Receivedcheckpoint.com

CVSS V4.0: AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Weakness type: CWE-288

Description added or changed

New references:

https://support.checkpoint.com/results/sk/sk185222

Show 5 original changes

Individual changes of this event as published by NVD
Type	Action	Before	After
Affected versions (publisher)	added	—	Security Management Server, Multi-Domain Security Management Server
Description	added	—	An authentication bypass vulnerability in Check Point Security Management Server and Multi-Domain Security Management Server (MDS) could allow an unauthenticated remote attacker with network access to Management services to execute arbitrary commands on the Security Management Server. Successful exploitation could result in full compromise of the Security Management system. Check Point discovered this issue internally and has no indication of active exploitation.
CVSS	added	—	AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness type (CWE)	added	—	CWE-288
Reference	added	—	https://support.checkpoint.com/results/sk/sk185222

Source identifier: cve@checkpoint.com

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